The Collaborative International Dictionary of English v.0.48:

Fragrant \Fra"grant\, a. [L. fragrans. -antis, p. pr. of
   fragrare to emit a smell of fragrance: cf. OF. fragrant.]
   Affecting the olfactory nerves agreeably; sweet of smell;
   odorous; having or emitting an agreeable perfume.
   [1913 Webster]

         Fragrant the fertile earth
         After soft showers.                      --Milton.

   Syn: Sweet-smelling; odorous; odoriferous; sweet-scented;
        redolent; ambrosial; balmy; spicy; aromatic. --
        Fra"grant*ly, adv.
        [1913 Webster]

WordNet (r) 3.0 (2006):

fragrant
    adj 1: pleasant-smelling [ant: ill-smelling, malodorous,
           malodourous, stinky, unpleasant-smelling]

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "fragrant":
   ambrosial, aromatic, balmy, delectable, delicious, delightful,
   effluvious, essenced, flowery, fruity, incense-breathing,
   malodorous, musky, odorant, odorate, odored, odoriferous, odorous,
   perfumed, perfumy, redolent, savory, scented, smellful, smelling,
   smellsome, smelly, spicy, sweet, sweet-scented, sweet-smelling,
   thuriferous